Substituted acylamino phenyl uracils

ABSTRACT

The invention relates to new substituted acylaminophenyl-uracils of the general formula (I)                    
     in which 
     n, A, Ar, Q 1 , R 1 , R 2 , R 3 , R 4 , R 5  and R 6  have the meanings given in the description, and to a process for their preparation, and to their use as herbicides.

This application is a 371 National Application of PCT/EP99/04743, filedJul. 7, 1999.

FIELD OF THE INVENTION

The invention relates to new substituted acylaminophenyl-uracils, toprocesses for their preparation, and to their use as herbicides.

BACKGROUND OF THE INVENTION

Certain substituted aryluracils have already been disclosed in the(patent) literature (cf. EP-A-408382, U.S. Pat. No. 5,084,084, U.S. Pat.No. 5,127,935, U.S. Pat. No. 5,154,755, EP-A-563384, U.S. Pat. No.5,356,863, WO-A-95/29168, WO-A-96/35679, WO-A-97/01542, WO-A-97/09319,WO-A-98/06706). However, these compounds have not gained any particularimportance to date.

SUMMARY OF THE INVENTION

Novel substituted acylaminophenyl-uracils have the general formula (I)

in which:

n represents the numbers 0 or 1,

A represents in each case optionally substituted alkanediyl(alkylene) oracycloalkanediyl, or—with the proviso that n then represents 1—alsorepresents a single bond or is attached to Ar via an alkanediylgrouping,

Ar represents in each case optionally substituted aryl, arylalkyl,heterocyclyl or heterocyclylalkyl,

Q represents O, S, SO, SO₂, NH or N(alkyl),

R¹ represents hydrogen, amino or optionally substituted alkyl,

R² represents carboxyl, cyano, carbamoyl, thiocarbamoyl or represents ineach case optionally substituted alkyl or alkoxycarbonyl,

R³ represents hydrogen, halogen or optionally substituted alkyl,

R⁴ represents hydrogen, cyano, carbamoyl, thiocarbamoyl or halogen,

R⁵ represents cyano, carbamoyl, thiocarbamoyl, halogen, or represents ineach case optionally substituted alkyl or alkoxy, and

R⁶ represents hydrogen or represents in each case optionally substitutedalkyl, alkylcarbonyl, alkoxycarbonyl, alkylsulphonyl, alkenyl,alkenylcarbonyl, alkenylsulphonyl, alkinyl, cycloalkylcarbonyl,cycloalkylsulphonyl, arylcarbonyl, arylsulphonyl, arylalkylcarbonyl,arylalkylsulphonyl, heterocyclylcarbonyl or heterocyclylsulphonyl.

DETAILED DESCRIPTION

In the definitions, the hydrocarbon chains, such as alkyl oralkanediyl—also in connection with heteroatoms such as in alkoxy—are ineach case straight-chain or branched.

In as far as the compounds of the general formula (I) according to theinvention contain asymmetrically substituted carbon atoms, the inventionrelates in each case to the R enantiomers and the S enantiomers and toany mixtures of these enantiomers, in particular the racemates.

A preferably represents in each case optionally halogen-substitutedalkanediyl (alkylene) having 1 to 6 carbon atoms or cycloalkanediylhaving 3 to 6 carbon atoms or—in the case that n then represents 1—alsorepresents a single bond or is attached to Ar via an alkanediyl groupinghaving 1 to 3 carbon atoms;

Ar preferably represents in each case optionally substituted aryl orarylalkyl having in each case 6 or 10 carbon atoms in the aryl group andoptionally 1 to 4 carbon atoms in the alkyl moiety, or represents ineach case optionally substituted heterocyclyl or heterocyclylalkylhaving in each case 1 to 5 carbon atoms and at least one heteroatom (upto 4 nitrogen atoms and/or optionally 1 or 2 oxygen or sulphur atoms),

where the substituents that are possible in each case are preferablyselected from the following list:

nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, C₁-C₄-alkyl,C₁-C₄-halogenoalkyl, C₁-C₄-alkoxy, C₁-C₄-halogenoalkoxy,C₁-C₄-alkylthio, C₁-C₄-halogenoalkylthio, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl, C₁-C₄-alkylsulphonyl,C₁-C₄-lalogenoalkylsulphonyl, C₁-C₄-alkylamino, di-(C₁-C₄-alkyl)-amino,C₁-C₄-alkyl-carbonyl, C₁-C₄-alkoxycarbonyl, C₁-C₄-alkylamino-carbonyl,di-(C₁-C₄-alkyl)-amino-carbonyl, di-(C₁-C₄-alkyl)-amino-sulphonyl,

Q preferably represents O (oxygen), S (sulphur), SO, SO₂, NH orN(C₁-C₄-alkyl),

R¹ preferably represents hydrogen, amino or optionally cyano-,carboxyl-, halogen-, C₁-C₄-alkoxy-or C₁-C₄-alkoxycarbonyl-substitutedalkyl having 1 to 6 carbon atoms,

R² preferably represents carboxyl, cyano, carbamoyl, thiocarbamoyl orrepresents in each case optionally cyano-, halogen- orC₁-C₄-alkoxy-substituted alkyl or alkoxycarbonyl having in each case 1to 6 carbon atoms in the alkyl groups,

R³ preferably represents hydrogen, halogen or optionallyhalogen-substituted alkyl having 1 to 6 carbon atoms,

R⁴ preferably represents hydrogen, cyano, carbamoyl, thiocarbamoyl,fluorine or chlorine,

R⁵ preferably represents cyano, carbamoyl, thiocarbamoyl, halogen, orrepresents in each case optionally halogen-substituted alkyl or alkoxyhaving in each case 1 to 4 carbon atoms, and

R⁶ preferably represents hydrogen, represents in each case optionallycyano-, halogen- or C₁-C₄-alkoxy-substituted alkyl, alkylcarbonyl oralkoxycarbonyl having in each case 1 to 6 carbon atoms in the alkylgroups, represents optionally halogen-substituted alkylsulphonyl having1 to 6 carbon atoms, represents in each case optionallyhalogen-substituted alkenyl, alkenylcarbonyl, alkenylsulphonyl oralkinyl having in each case up to 6 carbon atoms, represents in eachcase optionally halogen-substituted cycloalkylcarbonyl orcycloalkylsulphonyl having in each case 3 to 6 carbon atoms in thecycloalkyl groups, represents in each case optionally nitro-, cyano-,halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-,C₁-C₄-halogenoalkoxy-, C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-,C₁-C₄-alkylsulphinyl-, C₁-C₄-halogenoalkylsulphinyl-,C₁-C₄-alkylsulphonyl-, C₁-C₄-halogenoalkylsulphonyl,C₁-C₄-alkyl-carbonyl-, C₁-C₄-alkoxy-carbonyl- ordi-(C₁-C₄-alkyl-amino)-sulphonyl-substituted arylcarbonyl,arylsulphonyl, arylalkylcarbonyl or arylalkylsulphonyl having in eachcase 6 or 10 carbon atoms in the aryl groups and optionally 1 to 4carbon atoms in the alkyl moiety, or represents in each case optionallynitro-, cyano-, halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-,C₁-C₄-alkoxy-, C₁-C₄-halogenoalkoxy-, C₁-C₄-alkylthio-,C₁-C₄-halogenoalkylthio-, C₁-C₄-alkylsulphinyl-,C₁-C₄-halogenoalkylsulphinyl-, C₁-C₄-alkylsulphonyl-,C₁-C₄-halogenoalkylsulphonyl-, C₁-C₄-alkyl-carbonyl-,C₁-C₄-alkoxy-carbonyl- or di-(C₁-C₄-alkyl-amino)-sulphonyl-substitutedheterocyclyl-carbonyl or heterocyclylsulphonyl having 1 to 5 carbonatoms and 1 to 4 nitrogen atoms and/or 1 or 2 oxygen or sulphur atoms;

A particularly preferably represents in each case optionally fluorine-and/or chlorine-substituted methylene, ethane-1,1-diyl(ethylidene),ethane-1,2-diyl (dimethylene), propane-1,1-diyl(propylidene),propane-1,2-diyl or propane-1,3-diyl(trimethylene),cyclopropane-1,1-diyl, cyclopropane-1,2-diyl, cyclobutane-1,1-diyl,cyclopentane-1,1-diyl or cyclohexane-1,1-diyl, or—in the case that nthen represents 1—also represents a single bond, or is attached to Arvia a 1,2-ethanediyl(dimethylene) grouping;

Ar particularly preferably represents in each case optionallysubstituted phenyl, naphthyl, benzyl, 1-phenyl-ethyl, 2-phenyl-ethyl,1-phenyl-propyl, 2-phenyl-propyl or 3-phenyl-propyl, or represents ineach case optionally substituted heterocyclyl or heterocyclylalkylselected from the group consisting of oxiranyl, oxiranylmethyl,oxetanyl, oxetanylmethyl, furyl, furylmethyl, tetrahydrofuryl,tetrahydrofurylmethyl, thienyl, thienylmethyl, tetrahydrothienyl,tetrahydrothienylmethyl, benzofuryl, benzofurylmethyl,dihydrobenzofuryl, dihydrobenzofurylmethyl, benzothienyl,benzothienylmethyl, pyrrolyl, pyrrolylmethyl, pyrazolyl,pyrazolylmethyl, pyranyl, pyranylmethyl, benzopyranyl,benzopyranylmethyl, dihydrobenzopyranyl, dihydrobenzopyranylmethyl,tetrahydrobenzopyranyl, tetrahydrobenzopyranylmethyl, pyridinyl,pyridinylmethyl, pyrimidinyl, pyrimidinylmethyl,

where the substituents that arc possible in each case are preferablyselected from the following list:

nitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, fluorine, chlorine,bromine, methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl,trifluoromethyl, methoxy, ethoxy, n- or i-propoxy, n-, i-, s- ort-butoxy, difluoromethoxy, trifluoromethoxy, methylthio, ethylthio, n-or i-propylthio, n-, i-, s- or t-butylthio, difluoromethylthio,trifluoromethylthio, methylsulphinyl, ethylsulphfinyl, n- ori-propylsulphinyl, trifluoromethylsulphinyl, methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, trifluoromethylsulphonyl,methylamino, ethylamino, n- or i-propylamino, n-, i-, s- ort-butylamino, dimethylamino, diethyl-amino, acetyl, propionyl, n- ori-butyroyl, methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl,methylaminocarbonyl, ethylaminocarbonyl, n- or i-propylaminocarbonyl,dimethylaminocarbonyl, diethylaminocarbonyl, dimethylaminosulphonyl,diethylaminosulphonyl,

Q particularly preferably represents O (oxygen), S (sulphur), SO, SO₂,NH or N(methyl),

R¹ particularly preferably represents hydrogen, amino or in each caseoptionally cyano-, fluorine-, chlorine-, methoxy- or ethoxy-substitutedmethyl or ethyl,

R² particularly preferably represents carboxyl, cyano, carbamoyl,thiocarbamoyl or represents in each case optionally cyano-, fluorine-,chlorine-, methoxy- or ethoxy-substituted methyl, ethyl, n- or i-propyl,methoxycarbonyl or ethoxycarbonyl,

R³ particularly preferably represents hydrogen, fluorine, chlorine,bromine or in each case optionally fluorine- or chlorine-substitutedmethyl, ethyl, n- or i-propyl,

R⁴ particularly preferably represents hydrogen, fluorine or chlorine,

R⁵ particularly preferably represents cyano, carbamoyl, thiocarbamoyl,fluorine, chlorine, bromine, or represents in each case optionallyfluorine- and/or chlorine-substituted methyl, ethyl, n- or i-propyl,methoxy, ethoxy, n- or i-propoxy.

R⁶ particularly preferably represents hydrogen, represents in each caseoptionally cyano-, fluorine-, chlorine-, methoxy- or ethoxy-substitutedmethyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl, acetyl, propionyl,n- or i-butyroyl, n-, i- or sec-valeroyl, pivaloyl, methoxycarbonyl,ethoxycarbonyl, n- or i-propoxycarbonyl, represents in each caseoptionally fluorine- and/or chlorine-substituted methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, n-, i-, s- or t-butylsulphonyl,represents in each case optionally fluorine-, chlorine- and/orbromine-substituted ethenyl, propenyl, butenyl, ethenylcarbonyl,propenylcarbonyl, butenylcarbonyl, ethinyl, propinyl or butinyl,represents in each case optionally fluorine-, chlorine- and/orbromine-substituted cyclopropylcarbonyl, cyclopropylmethylcarbonyl,cyclobutylcarbonyl, cyclobutylmethylcarbonyl, cyclopentylcarbonyl,cyclopentylmethylcarbonyl, cyclohexylcarbonyl, cyclohexylmethylcarbonyl,cyclopropylsulphonyl, cyclopropylmethylsulphonyl, cyclobutylsulphonyl,cyclobutylmethylsulphonyl, cyclopentylsulphonyl,cyclopentylmethylsulphonyl, cyclohexylsulphonyl orcyclohexylmethylsulphonyl, represents in each case optionally nitro-,cyano-, fluorine-, chlorine-, bromine-, methyl-, ethyl-, n- ori-propyl-, n-, i-, s- or t-butyl-, trifluoromethyl-, methoxy-, ethoxy-,n- or i-propoxy-, n-, i-, s- or t-butoxy-, difluoromethoxy-,trifluoromethoxy-, methylthio-, ethylthio-, n- or i-propylthio-, n-, i-,s- or t-butylthio-, difluoromethylthio-, trifluoromethylthio-,methylsulphinyl-, ethylsulphinyl-, n- or i-propylsulphinyl-,trifluoromethylsulphinyl-, methylsulphonyl-, ethylsulphonyl-, n- ori-propylsulphonyl-, trifluoromethylsulphonyl-, acetyl-, propionyl-, n-or i-butyroyl-, methoxycarbonyl-, ethoxycarbonyl-, n- ori-propoxycarbonyl-, dimethylaminosulphonyl- ordiethylamino-sulphonyl-substituted benzoyl, phenylsulphonyl,phenylacetyl, phenylpropionyl, benzylsulphonyl or phenylethylsulphonyl,or represents in each case optionally nitro-, cyano-, fluorine-,chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-, n-, i-, s- ort-butyl-, trifluoromethyl-, methoxy-, ethoxy-, n- or i-propoxy-, n-, i-,s- or t-butoxy-, difluoromethoxy-, trifluoromethoxy-, methylthio-,ethylthio-, n- or i-propylthio-, n-, i-, s- or t-butylthio-,difluoromethylthio-, trifluoromethylthio-, methylsulphinyl-,ethylsulphinyl-, n- or i-propylsulphinyl-, trifluoromethylsulphinyl-,methylsulphonyl-, ethylsulphonyl-, n- or i-propylsulphonyl-,trifluoromethylsulphonyl-, acetyl-, propionyl-, n- or i-butyroyl-,methoxycarbonyl-, ethoxycarbonyl-, n- or i-propoxy-carbonyl-,dimethylaminosulphonyl- or diethyl-aminosulphonyl-substitutedheterocyclylcarbonyl or heterocyclylsulphonyl selected from the groupconsisting of furylcarbonyl, furylsulphonyl, thienylcarbonyl,thienylsulphonyl, pyrazolylcarbonyl, pyrazolylsulphonyl,pyridinylcarbonyl, pyridinylsulphonyl, quinolinylcarbonyl,quinolinylsuiphonyl, pyrimidinylcarbonyl, pyrimidinylsulphonyl;

A very particularly preferably represents methylene,ethane-1,1-diyl(ethylidene) or ethane-1,2-diyl(dimethylene),

Ar very particularly preferably represents in each case optionallysubstituted phenyl, naphthyl or benzyl,

where the substituents that are possible in each case are selected inparticular from the following list:

nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl, n- ori-propyl, n-, i-, s- or t-butyl, trifluoromethyl, methoxy, ethoxy, n- ori-propoxy, difluoromethoxy, trifluoromethoxy, methylthio, ethylthio, n-or i-propylthio, difluoromethylthio, trifluoromethylthio,methylsulphinyl, ethylsulphinyl, n- or i-propylsulphinyl,trifluoromethylsulphinyl, methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, trifluoromethylsulphonyl, methoxycarbonyl,ethoxycarbonyl, n- or i-propoxycarbonyl,

Q very particularly preferably represents O (oxygen),

R¹ very particularly preferably represents hydrogen, amino or methyl,

R² very particularly preferably represents trifluoromethyl,

R³ very particularly preferably represents hydrogen, chlorine or methyl,

R⁴ very particularly preferably represents hydrogen, fluorine orchlorine,

R⁵ very particularly preferably represents cyano, carbamoyl,thiocarbamoyl, chlorine or bromine,

R⁶ very particularly preferably represents hydrogen, represents in eachcase optionally fluorine- and/or chlorine-substituted methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, n-, i- s- or t-butylsulphonyl,or represents optionally fluorine- and/or chlorine-substitutedcyclopropylsulphonyl;

Ar most preferably represents in each case optionally substituted phenylor naphthyl,

where the substituents that are possible in each case are selected inparticular from the following list:

nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl, n- ori-propyl, n-, i-, s- or t-butyl, trifluoromethyl, methoxy, ethoxy, n- ori-propoxy, difluoromethoxy, trifluoromethoxy, methylthio, ethylthio, n-or i-propylthio, difluoromethylthio, trifluoromethylthio,methylsulphinyl, ethylsulphinyl, n- or i-propylsulphinyl,trifluoromethylsulphinyl, methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, trifluoromethylsulphonyl, methoxycarbonyl,ethoxycarbonyl, n- or i-propoxycarbonyl.

The abovementioned general or preferred radical definitions apply bothto the end products of the formula (I) and also correspondingly to thestarting materials or intermediates required in each case for thepreparation. These radical definitions can be combined with each otheras desired, i.e. including combinations between the given preferredranges.

Preferred according to the invention are those compounds of the formula(I) in which there exists a combination of the meanings mentioned aboveas being preferred.

Especially preferred according to the invention are those compounds ofthe formula (I) in which there exists a combination of the meaningsmentioned above as being especially preferred.

Very especially preferred according to the invention are those compoundsof the formula (I) in which there exists a combination of the meaningsmentioned above as being very especially preferred.

Most preferred according to the invention are those compounds of theformula (I) in which there exists a combination of the meaningsmentioned above as being most preferred.

Examples of the compounds of the general formula (I) according to theinvention are given in the groups which follow.

Ar here has the meanings given in the list below:

2-cyano-phenyl, 3-cyano-phenyl, 4-cyano-phenyl, 2-fluoro-phenyl,3-fluoro-phenyl, 4-fluoro-phenyl, 2,3-difluoro-phenyl,2,4-difluoro-phenyl, 2,5-difluoro-phenyl, 2,6-difluoro-phenyl,3,4-difluoro-phenyl, 3,5-difluoro-phenyl, 2-chloro-phenyl,3-chloro-phenyl, 4-chloro-phenyl, 2,3-dichloro-phenyl,2,4-dichloro-phenyl, 2,5-dichloro-phenyl, 2,6-dichloro-phenyl,3,4-dichloro-phenyl, 3,5-dichloro-phenyl, 2-bromo-phenyl,3-bromo-phenyl, 4-bromo-phenyl, 2-methyl-phenyl, 3-methyl-phenyl,4-methyl-phenyl, 2,3-dimethyl-phenyl, 2,4-dimethyl-phenyl,2,5-dimethyl-phenyl, 2,6-dimethyl-phenyl, 3,4-dimethyl-phenyl,3,5-dimethyl-phenyl, 2-trifluoromethyl-phenyl, 3-trifluoromethyl-phenyl,4-trifluoromethyl-phenyl, 2-methoxy-phenyl, 3-methoxy-phenyl,4-methoxy-phenyl, 2,4-dimethoxy-phenyl, 2,5-dimethoxy-phenyl,2,6-dimethoxy-phenyl, 3,4-dimethoxy-phenyl, 2-difluoromethoxy-phenyl,4-difluoromethoxy-phenyl, 2-trifluoromethoxy-phenyl,4-trifluoromethoxy-phenyl, 2-chloro-4-methyl-phenyl,4-chloro-2-methyl-phenyl, 2-fluoro-4-chloro-phenyl,2-chloro-4-fluoro-phenyl, 2-chloro-4-bromo-phenyl,2-bromo-4-chloro-phenyl, 2-fluoro-4-bromo-phenyl,2-bromo-4-fluoro-phenyl, 4-fluoro-2-methyl-phenyl,4-bromo-2-methyl-phenyl.

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

Ar here has the meanings given above under Group 1

The novel substituted acylaminophenyl-uracils of the general formula (I)have interesting biological properties. In particular, they have strongherbicidal activity.

The novel substituted acylaminophenyl-uracils of the general formula (I)are obtained when aminophenyl-uracils of the general formula (II)

in which

R¹, R², R³, R⁴, R⁵ and R⁶ are each as defined above

are reacted with acylating agents of the general formula (III)

in which

n, A, Ar and Q are each as defined above and

X represents halogen,

if appropriate in the presence of a reaction auxiliary and ifappropriate in the presence of a diluent,

and, if appropriate, electrophilic or nucleophilic reactions oroxidations or reductions within the scope of the definition of thesubstituents are subsequently carried out in a customary manner.

The compounds of the general formula (I) can be converted by customarymethods into other compounds of the general formula (I) according to theabove definition, for example by amination or alkylation (for exampleR¹: H→NH₂, CH₃), reaction with dicyanogen or hydrogen sulphide (forexample R⁵: Br→CN, CN→CSNH₂, cf. the Preparation Examples.

Using, for example,1-(2,4-dichloro-5-methylsulphonylamino-phenyl)-4-difluoro-methyl-3,6-dihydro-2,6-dioxo-1(2H)-pyrimidineand (4-chloro-2-methyl-phenoxy)-acetyl chloride as starting materials,the course of the reaction of the process according to the invention canbe illustrated by the following equation:

Formula (II) provides a general definition of the aminophenyluracils tobe used as starting materials in the process according to the inventionfor the preparation of compounds of the formula (I). In formula (II),R¹, R², R³, R⁴, R⁵ and R⁶ have, preferably, those meanings which havealready been mentioned above in connection with the description of thecompounds of the formula (I) according to the invention as beingpreferred, especially preferred or very especially preferred for R¹, R²,R³, R⁴, R⁵ and R⁶.

The starting materials of the general formula (II) are known and/or canbe prepared by processes known per se (cf. EP-A-408382, EP-A-648749,WO-A-97/01542).

Formula (III) provides a general definition of the acylating agents alsoto be used as starting materials in the process according to theinvention. In formula (III), n, A, Ar and Q each preferably have thosemeanings which have already been mentioned above in connection with thedescription of the compounds of the formula (I) according to theinvention as being preferred, particularly preferred, very particularlypreferred or most preferred for n, A, Ar and Q; X preferably representsfluorine, chlorine or bromine, in particular chlorine.

The starting materials of the general formula (III) are known chemicalsfor synthesis.

The process according to the invention for the preparation of thecompounds of the general formula (I) is preferably carried out using areaction auxiliary. Reaction auxiliaries which are suitable for theprocess according to the invention are, in general, the customaryinorganic or organic bases or acid acceptors. These preferably includealkali metal or alkaline earth metal acetates, amides, carbonates,bicarbonates, hydrides, hydroxides or alkoxides, such as, for example,sodium acetate, potassium acetate or calcium acetate, lithium amide,sodium amide, potassium amide or calcium amide, sodium carbonate,potassium carbonate or calcium carbonate, sodium bicarbonate, potassiumbicarbonate or calcium bicarbonate, lithium hydride, sodium hydride,potassium hydride or calcium hydride, lithium hydroxide, sodiumhydroxide, potassium hydroxide or calcium hydroxide, sodium methoxide,ethoxide, n- or i-propoxide, n-, i-, s- or t-butoxide, or potassiummethoxide, ethoxide, n- or i-propoxide, n-, i-, s- or t-butoxide;furthermore also basic organic nitrogen compounds, such as, for example,trimethylamine, triethylamine, tripropylamine, tributylamine,ethyl-diisopropylamine, N,N-dimethyl-cyclo-hexylamine,dicyclohexylamine, ethyl-dicyclohexylamine, N,N-dimethyl-aniline,N,N-dimethyl-benzylamine, pyridine, 2-methyl-, 3-methyl-, 4-methyl-,2,4-dimethyl-, 2,6-dimethyl-, 3,4-dimethyl- and 3,5-dimethyl-pyridine,5-ethyl-2-methyl-pyridine, 4-dimethylamino-pyridine,N-methyl-piperidine, 1,4-diaza-bicyclo[2.2.2]octane (DABCO),1,5-diazabicyclo[4.3.0]-non-5-ene (DBN), or1,8-diazabicyclo[5.4.0]-undec-7-ene (DBU).

The process according to the invention for preparing the compounds ofthe general formula (I) is preferably carried out using a diluent.Suitable diluents for carrying out the process according to theinvention are, in particular, inert organic solvents. These preferablyinclude aliphatic, alicyclic or aromatic, optionally halogenatedhydrocarbons, such as, for example, benzine, benzene, toluene, xylene,chloro-benzene, dichlorobenzene, petroleum ether, hexane, cyclohexane,dichloromethane, chloroform, carbon tetrachloride; ethers, such asdiethyl ether, diisopropyl ether, dioxane, tetrahydrofuran or ethyleneglycol dimethyl ether or ethylene glycol diethyl ether; ketones, such asacetone, butanone or methyl-isobutyl ketone; nitriles, such asacetonitrile, propionitrile or butyronitrile; amides, such asN,N-dimethylformamide, N,N-dimethylacetamide, N-methylformanilide,N-methyl-pyrrolidone or hexa-methylphosphoric triamide; esters, such asmethyl acetate or ethyl acetate, sulphoxides, such as dimethylsulphoxide, alcohols, such as methanol, ethanol, n- or i-propanol,ethylene glycol monomethyl ether, ethylene glycol monoethyl ether,diethylene glycol monomethyl ether, diethylene glycol monoethyl ether,mixtures thereof with water, or pure water.

When carrying out the process according to the invention, the reactiontemperatures can be varied within a substantial range. In general, theprocess is carried out at temperatures between 0° C. and 150° C.,preferably between 10° C. and 120° C.

The process according to the invention is generally carried out underatmospheric pressure. However, it is also possible to carry out theprocesses according to the invention under elevated or reduced pressure,in general between 0.1 bar and 10 bar.

To carry out the process according to the invention, the startingmaterials are generally employed in approximately equimolar amounts.However, it is also possible to use one of the components in a largerexcess. In general, the reaction is carried out in a suitable diluent inthe presence of a reaction auxiliary, and the reaction mixture isgenerally stirred for several hours at the temperature required.Working-up is by.customary methods (cf. the preparation examples).

The active compounds according to the invention can be used asdefoliants, desiccants, haulm killers and, especially, as weedkillers.By weeds, in the broadest sense, there are to be understood all plantswhich grow in locations where they are undesired. Whether the substancesaccording to the invention act as total or selective herbicides dependsessentially on the amount used.

The active compounds according to the invention can be used, forexample, in connection with the following plants:

Dicotyledonous weeds of the genera: Sinapis, Lepidium, Galium,Stellaria, Matricaria, Anthemis, Galinsoga, Chenopodium, Urtica,Senecio, Amaranthus, Portulaca, Xanthium, Convolvulus, Ipomoea,Polygonum, Sesbania, Ambrosia, Cirsiun, Carduus, Sonchus, Solanum,Rorippa, Rotala, Lindernia, Lamium, Veronica, Abutilon, Emex, Datura,Viola, Galeopsis, Papaver, Centaurea, Trifolium, Ranunculus andTaraxacum.

Dicotyledonous crops of the genera: Gossypium, Glycine, Beta, Daucus,Phaseolus, Pisum, Solanum, Linum, Ipomoea, Vicia, Nicotiana,Lycopersicon, Arachis, Brassica, Lactuca, Cucumis and Cucurbita.

Monocotyledonous weeds of the genera: Echinochloa, Setaria, Panicum,Digitaria, Phleum, Poa, Festuca, Eleusine, Brachiaria, Lolium, Bromus,Avena, Cyperus, Sorghum, Agropyron, Cynodon, Monochoria, Fimbristylis,Sagittaria, Eleocharis, Scirpus, Paspalum, Ischaemum, Sphenoclea,Dactyloctenium, Agrostis, Alopecurus and Apera.

Monocotyledonous crops of the genera: Oryza, Zea, Triticum, Hordeum,Avena, Secale, Sorghum, Panicum, Saccharum, Ananas, Asparagus andAllium.

However, the use of the active compounds according to the invention isin no way restricted to these genera, but also extends in the samemanner to other plants.

Depending on the concentration, the compounds are suitable for totalweed control, for example on industrial terrain and rail tracks, and onpaths and areas with or without tree stands. Equally, the compounds canbe employed for controlling weeds in perennial crops, for exampleforests, ornamental tree plantings, orchards, vineyards, citrus groves,nut orchards, banana plantations, coffee plantations, tea plantations,rubber plantations, oil palm plantations, cocoa plantations, soft fruitplantings and hopfields, in lawns, turf and pastures, and for selectiveweed control in annual crops.

The compounds of the formula (I) according to the invention are suitablefor controlling monocotyledonous and dicotyledonous weeds both by thepre-emergence and by the post-emergence method. They have highherbicidal activity and a broad activity spectrum when used on the soiland on above-ground parts of plants.

The active compounds can be converted into the customary formulations,such as solutions, emulsions, wettable powders, suspensions, powders,dusts, pastes, soluble powders, granules, suspoemulsion concentrates,natural and synthetic materials impregnated with active compound, andmicroencapsulations in polymeric substances.

These formulations are produced in a known manner, for example by mixingthe active compounds with extenders, that is liquid solvents and/orsolid carriers, optionally with the use of surfactants, that isemulsifiers and/or dispersants and/or foam-formers.

If water is used as an extender, organic solvents can, for example, alsobe used as auxiliary solvents. Liquid solvents which are mainly suitableare: aromatics such as xylene, toluene, or alkylnaphthalenes,chlorinated aromatics and chlorinated aliphatic hydrocarbons such aschlorobenzenes, chloroethylenes or methylene chloride, aliphatichydrocarbons such as cyclohexane or paraffins, for example petroleumfractions, mineral and vegetable oils, alcohols such as butanol orglycol as well as their ethers and esters, ketones such as acetone,methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, stronglypolar solvents such as dimethylformamide and dimethyl sulphoxide, andwater.

Suitable solid carriers are: for example ammonium salts and groundnatural minerals such as kaolins, clays, talc, chalk, quartz,attapulgite, montmorillonite or diatomaceous earth, and ground syntheticminerals such as highly disperse silica, alumina and silicates; suitablesolid carriers for granules are: for example crushed and fractionatednatural rocks such as calcite, marble, pumice, sepiolite and dolomite,or else synthetic granules of inorganic and organic meals, and granulesof organic material such as sawdust, coconut shells, maize cobs andtobacco stalks; suitable emulsifiers and/or foam formers are: forexample non-ionic and anionic emulsifiers, such as polyoxyethylene fattyacid esters, polyoxyethylene fatty alcohol ethers, for example alkylarylpolyglycol ethers, alkylsulplhonates, alkyl sulphates, arylsulphonatesand protein hydrolyzates; suitable dispersants are: for examplelignin-sulphite waste liquors and methylcellulose.

Adhesives such as carboxymethylcellulose and natural and syntheticpolymers in the form of powders, granules or latexes such as gum arabic,polyvinyl alcohol and polyvinyl acetate, or else natural phospholipidssuch as cephalins and lecithins, and synthetic phospholipids can be usedin the formulations. Further additives can be mineral and vegetableoils.

It is possible to use colorants such as inorganic pigments, for exampleiron oxide, titanium oxide and Prussian Blue, and organic dyestuffs suchas alizarin dyestuffs, azo dyestuffs and metal phthalocyanine dyestuffs,and trace nutrients such as salts of iron, manganese, boron, copper,cobalt, molybdenum and zinc.

The formulations generally comprise between 0.1 and 95 per cent byweight of active compound, preferably between 0.5 and 90%.

For controlling weeds, the active compounds according to the invention,as such or in the form of their formulations, can also be used asmixtures with known herbicides, readymixes or tank mixes being possible.

Possible components for the mixtures are known herbicides, such as, forexample, acetochlor, acifluorfen(-sodium), aclonifen, alachlor,alloxydim(-sodium), ametryne, amidochlor, amidosulfuron, anilofos,asulam, atrazine, azafenidin, azimsulfuron, benazolin(-ethyl),benfuresate, bensulfuron(-methyl), bentazone, benzofenap,benzoylprop(-ethyl), bialaphos, bifenox, bispyribac(-sodium),bromobutide, bromofenoxim, bromnoxynil, butachlor, butroxydim, butylate,cafenstrole, caloxydim, carbetamde, carfentrazone(-ethyl),chlomethoxyfen, chloramben, chloridazon, chlorimuron(-ethyl),chlornitrofen, chlorsulfuron, chlortoluron, cinidon(-ethyl),cinmethylin, cinosulfuron, clethodim, clodinafop(-propargyl), clomazone,clomeprop, clopyralid, clopyrasulfuron(-methyl), cloransulam(-methyl),cumyluron, cyanazine, cybutryne, cycloate, cyclosulfamuron, cycloxydim,cyhalofop(-butyl), 2,4-D, 2,4-DB, 2,4-DP, desmedipham, di-allate,dicamba, diclofop(-methyl), diclosulam, diethatyl(-ethyl), difenzoquat,diflufenican, diflufenzopyr, dimefuron, dimepiperate, dimethachlor,dimethametryn, dimethenamid, dimexyflam, dinitramine, diphenamid,diquat, dithiopyr, diuron, dymrone, epoprodan, EPTC, esprocarb,ethalfluralin, ethametsulfuron(-methyl), ethofumesate, ethoxyfen,ethoxysulfuron, etobenzanid, fenoxaprop(-P-ethyl), flamprop(-isopropyl),flamprop(-isopropyl-L), flamprop(-methyl), flazasulfuron,fluazifop(-P-butyl), fluazolate, flucarbazone, flufenacet, flumetsulam,flumiclorac(-pentyl), flumioxazin, flumipropyn, flumetsulam,fluometuron, fluorochloridone, fluoroglycofen(-ethyl), flupoxam,flupropacil, flurpyrsulfuron(-methyl, -sodium), flurenol(-butyl),fluridone, fluroxypyr(-meptyl), flurprimidol, flurtamone,fluthiacet(-methyl), fluthiamide, fomesafen, glufosinate(-ammonium),glyphosate(-isopropylammonium), halosafen, haloxyfop(-ethoxyethyl),haloxyfop(-P-methyl), hexazinone, imazamethabenz-(-methyl),imazamethapyr, imazamox, imazapic, imazapyr, imazaquin, imazethapyr,imazosulfuron, iodosulfuron, ioxynil, isopropalin, isoproturon, isouron,isoxaben, isoxachlortole, isoxaflutole, isoxapyrifop, lactofen, lenacil,linuron, MCPA, MCPP, mefenacet, mesotrione, metamitron, metazachlor,metha-benzthiazuron, metobenzuron, metobromuron, (alpha-)metolachlor,metosulam, metoxuron, metribuzin, metsulfuron(-methyl), molinate,monolinuron, naproanilide, napropamide, neburon, nicosulfuron,norflurazon, orbencarb, oryzalin, oxadiargyl, oxadiazon, oxasulfuron,oxaziclomefone, oxyfluorfen, paraquat, pelargonic acid, pendimethalin,pentoxazone, phenmedipham, piperophos, pretilachlor,primisulfuron(-methyl), prometryn, propachlor, propanil, propaquizafop,propisochlor, propyzanide, prosulfocarb, prosulfuron,pyraflufen(-ethyl), pyrazolate, pyrazosulfuron(-ethyl), pyrazoxyfen,pyribenzoxim, pyributicarb, pyridate, pyriminobac(-methyl),pyrithiobac(-sodium), quinchlorac, quinmerac, quinoclamine,quizalofop(-P-ethyl), quizalofop(-P-tefuryl), rimsulfuron, sethoxydim,simazine, simetryn, sulcotrione, sulfentrazone, sulfometuron(-methyl),sulfosate, sulfosulfuron, tebutam, tebuthiuron, tepraloxydim,terbuthylazine, terbutryn, thenylchlor, thiafluamide, thiazopyr,thidiazimin, thifensulfuron(-methyl), thiobencarb, tiocarbazil,tralkoxydim, tri-allate, triasulfuron, tribenuron(-methyl), triclopyr,tridiphane, trifluralin and triflusulfuron.

Mixtures with other known active compounds such as fungicides,insecticides, acaricides, nematicides, bird repellants, plant nutrientsand soil conditioners, are also possible.

The active compounds can be used as such, in the form of theirformulations or in the use forms prepared therefrom by further dilution,such as ready-to-use solutions, suspensions, emulsions, powders, pastesand granules. They are used in the customary manner, for example bypouring, spraying, atomizing or spreading.

The active compounds according to the invention can be applied eitherbefore or after emergence of the plants. They can also be incorporatedinto the soil before sowing.

The amount of active compound used can vary within a substantial range.It depends essentially on the nature of the desired effect. In general,the application rates are between 1 and 10 kg of active compound perhectare of soil surface, preferably between 5 and 5 kg per ha.

The preparation and use of the active compounds according to theinvention can be seen from the examples which follow.

PREPARATION EXAMPLES Example 1

At room temperature (approximately 20° C.), a mixture of 2.1 g (5 mmol)of1-(4-cyano-5-ethylsulphonylamino-2-fluorophenyl)-3-methyl-4-trifluoromethyl-3,6-dihydro-2,6-dioxo-1(2H)-pyrimidine,1.42 g (5 mmol) of 3-(3,4-dichloro-phenyl)-propionyl chloride, 0.63 g oftriethylamine and 50 ml of acetonitrile is stirred for 3 hours andsubsequently concentrated under waterpump vacuum. The residue is takenup in chloroform and the crystalline product is isolated by filtrationwith suction (product fraction 1). The mother liquor is washed with 1Nhydrochloric acid and then with water, dried with sodium sulphate andfiltered. The filtrate is concentrated under waterpump vacuum, theresidue is digested with ethyl acetate and diethyl ether and theresulting crystalline product is isolated by filtration with suction(product fraction 2). The two product fractions are combined and stirredwith 1N hydrochloric acid and ethyl acetate. The aqueous phase isextracted twice with ethyl acetate and the combined organic phases aredried with sodium sulphate and filtered. The filtrate is concentratedunder waterpump vacuum, the residue is digested with diethyl ether andthe resulting crystalline product is isolated by filtration withsuction.

This gives 1.3 g (42% of theory) of1-[4-cyano-5-(N-ethylsulphonyl-N-(3-(3,4-dichloro-phenyl)-propanoyl-amino)-2-fluoro-phenyl]-3-methyl-4-trifluoromethyl-3,6-dihydro-2,6-dioxo-1(2H)-pyrimidineof melting point 205° C.

Analogously to Preparation Example 1, and in accordance with the generaldescription of the preparation process according to the invention, it isalso possible to are, for example, the compounds of the formula (I)listed in Table 1 below.

TABLE 1 (I) 

Examples of the compounds of the formula (I) Ex. No. n A Ar Q R¹ R² R³R⁴ R⁵ R⁶ Physical data 2 1 CH₂

O CH₃ CF₃ H F CN

¹H-NMR: δ = 6.70 ppm (D₆-DMSO) 3 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 219° C. 4 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 220° C. 5 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 125° C. 6 1 CH₂

O CH₃ CF₃ H F CN

¹H-NMR: δ = 6.70 ppm (D₆-DMSO) 7 1 CH₂

O CH₃ CF₃ H F CN

¹H-NMR: δ = 7.25 ppm (D₆-DMSO) 8 1 CH₂

O CH₃ CF₃ H F CN

9 0 (CH₂)₂

— CH₃ CF₃ H F CN

m.p.: 210° C. 10 0 CH₂

— CH₃ CF₃ H F CN

11 0 CH₂

— CH₃ CF₃ H F CN

12 0 CH₂

— CH₃ CF₃ H F CN

13 0 CH₂

— CH₃ CF₃ H F CN

14 1

O CH₃ CF₃ H F CN

m.p.: 144° C. 15 0 CH₂

— CH₃ CF₃ H F CN

16 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 192° C. 17 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 196° C. 18 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 227° C. 19 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 132° C. 20 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 195° C. 21 0

— CH₃ CF₃ H F CN

m.p.: 183° C. 22 0 CH₂

— CH₃ CF₃ H F CN

23 1

O CH₃ CF₃ H F CN

24 1

O CH₃ CF₃ H F CN

25 1

O CH₃ CF₃ H F CN

26 1

O CH₃ CF₃ H F CN

27 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 101° C. 28 1 CH₂

O CH₃ CF₃ H F CN

29 0 (CH₂)₂

— CH₃ CF₃ H F CN

30 0 CH₂

— CH₃ CF₃ H F CN

31 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 131° C. 32 0 CH₂

— CH₃ CF₃ H F CN

33 0 CH₂

— CH₃ CF₃ H F CN

34 1

O CH₃ CF₃ H F CN

m.p.: 125° C. 35 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 191° C. 36 0 CH₂

— CH₃ CF₃ H F CN

37 0 CH₂

— CH₃ CF₃ H F CN

38 0 CH₂

— CH₃ CF₃ H F CN

39 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 172° C. 40 0 CH₂

— CH₃ CF₃ H F CN

41 0

— CH₃ CF₃ H F CN

m.p.: 81° C. 42 0 CH₂

— CH₃ CF₃ H F CN

43 1

O CH₃ CF₃ H F CN

44 1

O CH₃ CF₃ H F CN

45 1

O CH₃ CF₃ H F CN

46 1

O CH₃ CF₃ H F CN

47 0

— CH₃ CF₃ H F CN

m.p.: 118° C. 48 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 168° C. 49 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 182° C. 50 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 131° C. 51 0

— CH₃ CF₃ H F CN

m.p.: 237° C. 52 1 C(CH₃)₂

O CH₃ CF₃ H F CN

m.p.: 105° C. 53 1

O CH₃ CF₃ H F CN

m.p.: 208° C. 54 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 162° C. 55 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 211° C. 56 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 204° C. 57 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 202° C. 58 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 93° C. 59 0 C(CH₃)₂

— CH₃ CF₃ H F CN

m.p.: 178° C. 60 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 175° C. 61 0 CH₂CH₂

— CH₃ CF₃ H F CN

m.p.: 95° C. 62 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 114° C. 63 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 125° C. 64 1 CH₂

O CH₃ CF₃ H F CN

m.p.: 122° C. 65 0 CH₂CH₂

— CH₃ CF₃ H F CN

m.p.: 97° C. 66 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 141° C. 67 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 127° C. 68 0 CH₂

— CH₃ CF₃ H F CN

m.p.: 123° C. 69 0 CH₂

CH₃ CF₃ H F CN

m.p.: 165° C. 70 1

O CH₃ CF₃ H F CN

m.p.: 201° C.

Analogously, it is also possible to prepare the two compounds shownbelow:

Ex. No. 71

Ex. No. 72

USE EXAMPLES Example A

Pre-emergence Test:

Solvent: 5 parts by weight of acetone

Emulsifier: 1 part by weight of alkylaryl polyglycol ether

To prepare a suitable preparation of active compound, 1 part by weightof active compound is mixed with the stated amount of solvent, thestated amount of emulsifier is added, and the concentrate is dilutedwith water to the desired concentration.

Seeds of the test plants are sown in normal soil. After approx. 24hours, the soil is sprayed with the preparation of active compound insuch a way that the desired amount of active compound is applied perunit area. The concentration of the spray mixture is chosen in such away that the desired amount of active substance is applied in 1000liters of water per hectare.

After spraying for three weeks, the degree of damage to the plants isscored in % damage in comparison with the development of the untreatedcontrol.

The figures denote:

 0% = no action (like untreated control) 100% = total destruction

In this test, a very potent action against weeds is shown, for example,by the compound of Preparation Example 2.

Example B

Post-emergence Test

Solvent: 5 parts by weight of acetone

Emulsifier: 1 part by weight of alkylaryl polyglycol ether

To prepare a suitable preparation of active compound, 1 part by weightof active compound is mixed with the stated amount of solvent, thestated amount of emulsifier is added, and the concentrate is dilutedwith water to the desired concentration.

Test plants which have a height of 5 to 15 cm are sprayed with thepreparation of active compound in such a way that the desired amounts ofactive compound are applied per unit area. The concentration of thespray mixture is chosen in such a way that the desired amounts of activesubstance are applied in 1000 liters of water per hectare.

After spraying for three weeks, the degree of damage to the plants isscored in % damage in comparison with the development of the untreatedcontrol.

The figures denote:

 0% = no action (like untreated control) 100% = total destruction

In this test, a very potent action against weeds is shown, for example,by the compound of Preparation Example 2.

What is claimed is:
 1. An acylaminophenyl-uracil of the formula (I)

wherein n represents the numbers 0 or 1, A represents unsubstituted orhalogen-substituted alkanediyl(alkylene) having 1 to 6 carbon atoms orcycloalkanediyl having 3 to 6 carbon atoms, or A represents a singlebond or an unsubstituted or halogen-substituted alkanediyl(alkylene)having 1 to 6 carbon atoms or cycloalkanediyl having 3 to 6 carbon atomsattached to Ar via an alkanediyl grouping having 1 to 3 carbon atomswhere n represents 1; Ar represents substituted aryl or arylalkyl having6 or 10 carbon atoms in the aryl group and optionally 1 to 4 carbonatoms in the alkyl moiety, or represents unsubstituted or substitutedheterocyclyl or heterocyclylalkyl selected from the group consisting ofoxiranyl, oxiranylmethyl, oxetanyl, oxetanylmethyl, furyl, furylmethyl,tetrahydrofuryl, tetrahydrofurylmethyl, thienyl, thienylmethyl,tetrahydrothienyl, tetrahydrothienylmethyl, benzofuryl,benzofurylmethyl, dihydrobenzofuryl, dihydrobenzofurylmethyl,benzothienyl, benzothienylmethyl, pyrrolyl, pyrrolylmethyl, pyrazolyl,pyrazolylmethyl, pyranyl, pyranylmethyl, benzopyranyl,benzopyranylmethyl, dihydrobenzopyranyl, dihydrobenzopyranylmethyl,tetrahydrobenzopyranyl, tetrahydrobenzopyranylmethyl, pyridinyl,pyridinylmethyl, pyrimidinyl, and pyrimidinylmethyl, wherein thesubstituent(s) for Ar is/are selected from the group consisting ofnitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, C₁-C₄-alkyl,C₁-C₄-halogenoalkyl, C₁-C₄-alkoxy, C₁-C₄-halogenoalkoxy,C₁-C₄-alkylthio, C₁-C₄-halogenoalkylthio, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl, C₁-C₄-alkylsulphonyl,C₁-C₄-halogenoalkylsulphonyl, C₁-C₄-alkylamino, di-(C₁-C₄-alkyl)amino,C₁-C₄-alkyl-carbonyl, C₁-C₄-alkoxy-carbonyl, C₁-C₄-alkylamino-carbonyl,di-(C₁-C₄-alkyl)-amino-carbonyl, and di-(C₁-C₄-alkyl)-amino-sulphonyl, Qrepresents O (oxygen), S (sulphur), SO, SO₂, NH or N(C₁-C₄-alkyl), R¹represents hydrogen, amino or unsubstituted or cyano-, carboxyl-,halogen-, C₁-C₄-alkoxy- or —C₁-C₄-alkoxycarbonyl-substituted alkylhaving 1 to 6 carbon atoms, R² represents carboxyl, cyano, carbamoyl,thiocarbamoyl or represents unsubstituted or cyano-, halogen- orC₁-C₄-alkoxy-substituted alkyl or alkoxycarbonyl having 1 to 6 carbonatoms in the alkyl groups, R³ represents hydrogen, halogen orunsubstituted or halogen-substituted alkyl having 1 to 6 carbon atoms,R⁴ represents hydrogen, cyano, carbamoyl, thiocarbamoyl, or halogen, R⁵represents cyano, carbamoyl, thiocarbamoyl, halogen, or representsunsubstituted or halogen-substituted alkyl or alkoxy having 1 to 4carbon atoms, and R⁶ represents hydrogen, represents unsubstituted orcyano-, halogen- or C₁-C₄-alkoxy-substituted alkyl, alkylcarbonyl oralkoxycarbonyl having 1 to 6 carbon atoms in the alkyl groups,represents unsubstituted or halogen-substituted alkylsulphonyl having 1to 6 carbon atoms, represents unsubstituted or halogen-substitutedalkenyl, alkenylcarbonyl, alkenylsulphonyl or alkynyl having up to 6carbon atoms, represents unsubstituted or halogen-substitutedcycloalkylcarbonyl or cycloalkylsulphonyl having 3 to 6 carbon atoms inthe cycloalkyl groups, represents unsubstituted or nitro-, cyano-,halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-,C₁-C₄-halogenoalkoxy-, C₁-C₄-alkylthio-, C₁-C₄- halogenoalkylthio-,C₁-C₄-alkylsulphinyl-, C₁-C₄- halogenoalkylsulphinyl-,C₁-C₄-alkylsulphonyl-, C₁-C₄- halogenoalkylsulphonyl,C₁-C₄-alkyl-carbonyl-, C₁-C₄-alkoxy-carbonyl- or di-(C₁-C₄-alkyl-amino)-sulphonyl-substituted arylcarbonyl, arylsulphonyl,arylalkylcarbonyl or arylalkylsulphonyl having 6 or 10 carbon atoms inthe aryl groups and 1 to 4 carbon atoms in the alkyl moiety, orrepresents unsubstituted or nitro-, cyano-, halogen-, C₁-C₄-alkyl-,C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-, C₁-C₄-halogenoalkoxy-,C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl-, C₁-C₄-alkylsulphonyl-,C₁-C₄-halogenoalkylsulphonyl-, C₁-C₄-alkyl-carbonyl-,C₁-C₄-alkoxy-carbonyl- or di-(C₁-C₄- alkyl-aminoysulphonyl-substitutedheterocyclylcarbonyl or heterocyclylsulphonyl selected from the groupconsisting of furylcarbonyl, furylsulphonyl, thienylcarbonyl,thienylsulphonyl, pyrazolylcarbonyl, pyrazolylsulphonyl,pyridinylcarbonyl, pyridinylsulphonyl, quinolinylcarbonyl,quinolinylsulphonyl, pyrimidinylcarbonyl, and pyrimidinylsulphonyl. 2.The acylaminophenyl-uracil of claim 1, wherein Ar represents substitutedaryl or arylalkyl having 6 or 10 carbon atoms in the aryl group andoptionally 1 to 4 carbon atoms in the alkyl moiety, wherein the Arsubstituent(s) is/are selected from the group consisting of nitro,cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, C₁-C₄-alkyl,C₁-C₄-halogenoalkyl, C₁-C₄-alkoxy, C₁-C₄-halogenoalkoxy,C₁-C₄-alkylthio, C₁-C₄-halogenoalkylthio, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl, C₁-C₄-alkylsulphonyl,C₁-C₄-halogenoalkylsulphonyl, C₁-C₄-alkylamino, di-(C₁-C₄-alkyl)-amino,C₁-C₄-alkyl-carbonyl, C₁-C₄-alkoxy-carbonyl, C₁-C₄-alkylamino-carbonyl,di-(C₁-C₄-alkyl)-amino-carbonyl, and di-(C₁-C₄-alkyl)-amino-sulphonyl.3. An acylaminophenyl-uracil of the formula (I),

wherein n represents the numbers 0 or 1, A represents unsubstituted orfluorine- and/or chlorine-substituted methylene,ethane-1,1-diyl(ethylidene), ethane-1,2-diyl(dimethylene),propane-1,1-diyl(propylidene), propane-1,2-diyl orpropane-1,3-diyl(trimethylene), cyclopropane-1,1-diyl,cyclopropane-1,2-diyl, cyclobutane-1,1-diyl, cyclopentane-1,1-diyl orcyclohexane-1,1-diyl, or A represents a single bond, or an unsubstitutedor fluorine- and/or chlorine-substituted methylene,ethane-1,1-diyl(ethylidene), ethane-1,2-diyl(dimethylene),propane-1,1-diyl(propylidene), propane-1,2-diyl orpropane-1,3-diyl(trimethylene), cyclopropane-1,1-diyl,cyclopropane-1,2-diyl, cyclobutane-1,1-diyl, cyclopentane-1,1-diyl orcyclohexane-1,1-diyl, attached to Ar via a 1,2-ethanediyl(dimethylene)grouping where n represents 1; Ar represents substituted phenyl,naphthyl, benzyl, 1-phenyl-ethyl, 2-phenyl-ethyl, 1-phenyl-propyl,2-phenyl-propyl or 3-phenyl-propyl, or represents an optionallysubstituted heterocyclyl or heterocyclylalkyl selected from the groupconsisting of oxiranyl, oxiranylmethyl, oxetanyl, oxetanylmethyl, furyl,furylmethyl, tetrahydrofuryl, tetrahydrofurylmethyl, thienyl,thienylmethyl, tetrahydrothienyl, tetrahydrothienylmethyl, benzofuryl,benzofurylmethyl, dihydrobenzofuryl, dihydrobenzofurylmethyl,benzothienyl, benzothienylmethyl, pyrrolyl, pyrrolylmethyl, pyrazolyl,pyrazolylmethyl, pyranyl, pyranylmethyl, benzopyranyl,benzopyranylmethyl, dihydrobenzopyranyl, dihydrobenzopyranylmethyl,tetrahydrobenzopyranyl, tetrahydrobenzopyranylmethyl, pyridinyl,pyridinylmethyl, pyrimidinyl, and pyrimidinylmethyl, wherein the Arsubstituent(s) is/are selected from the group consisting of nitro,cyano, carboxyl, carbamoyl, thiocarbamoyl, fluorine, chlorine, bromine,methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl,methoxy, ethoxy, n- or i-propoxy, n-, i-, s- or t-butoxy,difluoromethoxy, trifluoromethoxy, methylthio, ethylthio, n- ori-propylthio, n-, i-, s- or t-butylthio, difluoromethylthio,trifluoromethylthio, methylsulphinyl, ethylsulphfinyl, n- ori-propylsulphinyl, trifluoromethylsulphinyl, methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, trifluoromethylsulphonyl,methylamino, ethylamino, n- or i-propylamino, n-, i-, s- ort-butylamino, dimethylamino, diethyl-amino, acetyl, propionyl, n- ori-butyroyl, methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl,methylaminocarbonyl, ethylaminocarbonyl, n- or i-propylaminocarbonyl,dimethylaminocarbonyl, diethylaminocarbonyl, dimethylaminosulphonyl, anddiethylaminosulphonyl, Q represents O (oxygen), S (sulphur), SO, SO₂, NHor N(methyl), R¹ represents hydrogen, amino or unsubstituted or cyano-,fluorine-, chlorine-, methoxy- or ethoxy-substituted methyl or ethyl, R²represents carboxyl, cyano, carbamoyl, thiocarbamoyl or representsunsubstituted or cyano-, fluorine-, chlorine-, methoxy- orethoxy-substituted methyl, ethyl, n- or i-propyl, methoxycarbonyl orethoxycarbonyl, R³ represents hydrogen, fluorine, chlorine, bromine orunsubstituted or fluorine- or chlorine-substituted methyl, ethyl, n- ori-propyl, R⁴ represents hydrogen, cyano, carbamoyl, thiocarbamoyl,fluorine or chlorine, R⁵ represents cyano, carbamoyl, thiocarbamoyl,fluorine, chlorine, bromine, or represents unsubstituted or fluorine-and/or chlorine-substituted methyl, ethyl, n- or i-propyl, methoxy,ethoxy, n- or i-propoxy, and R⁶ represents hydrogen, representsunsubstituted or cyano-, fluorine-, chlorine-, methoxy- orethoxy-substituted methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl,acetyl, propionyl, n- or i-butyroyl, n-, i- or sec-valeroyl, pivaloyl,methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl, representsoptionally fluorine- and/or chlorine-substituted methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, n-, i-, s- or t-butylsulphonyl,represents optionally fluorine-, chlorine- and/or bromine-substitutedethenyl, propenyl, butenyl, ethenylcarbonyl, propenylcarbonyl,butenylcarbonyl, ethynyl, propynyl or butynyl, represents optionallyfluorine-, chlorine- and/or bromine-substituted cyclopropylcarbonyl,cyclopropylmethylcarbonyl, cyclobutylcarbonyl, cyclobutylmethylcarbonyl,cyclopentylcarbonyl, cyclopentylmethylcarbonyl, cyclohexylcarbonyl,cyclohexylmethylcarbonyl, cyclopropylsulphonyl,cyclopropylmethylsulphonyl, cyclobutylsulphonyl,cyclobutylmethylsulphonyl, cyclopentylsulphonyl,cyclopentylmethylsulphonyl, cyclohexylsulphonyl orcyclohexylmethylsulphonyl, represents optionally nitro-, cyano-,fluorine-, chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-, n-,i-, s- or t-butyl-, trifluoromethyl-, methoxy-, ethoxy-, n- ori-propoxy-, n-, i-, s- or t-butoxy-, difluoromethoxy-,trifluoromethoxy-, methylthio-, ethylthio-, n- or i-propylthio-, n-, i-,s- or t-butylthio-, difluoromethylthio-, trifluoromethylthio-,methylsulphinyl-, ethylsulphinyl-, n- or i-propylsulphinyl-,trifluoromethylsulphinyl-, methylsulphonyl-, ethylsulphonyl-, n- ori-propylsulphonyl-, trifluoromethylsulphonyl-, acetyl-, propionyl-, n-or i-butyroyl-, methoxycarbonyl-, ethoxycarbonyl-, n- ori-propoxycarbonyl-, dimethylaminosulphonyl- ordiethylaminosulphonyl-substituted benzoyl, phenylsulphonyl,phenylacetyl, phenylpropionyl, benzylsulphonyl or phenylethylsulphonyl,or represents optionally nitro-, cyano-, fluorine-, chlorine-, bromine-,methyl-, ethyl-, n- or i-propyl-, n-, i-, s- or t-butyl-,trifluoromethyl-, methoxy-, ethoxy-, n- or i-propoxy-, n-, i-, s- ort-butoxy-, difluoromethoxy-, trifluoromethoxy-, methylthio-, ethylthio-,n- or i-propylthio-, n-, i-, s- or t-butylthio-, difluoromethylthio-,trifluoromethylthio-, methylsulphinyl-, ethylsulphinyl-, n- ori-propylsulphinyl-, trifluoromethylsulphinyl-, methylsulphonyl-,ethylsulphonyl-, n- or i-propylsulphonyl-, trifluoromethylsulphonyl-,acetyl-, propionyl-, n- or i-butyroyl-, methoxycarbonyl-,ethoxycarbonyl-, n- or i-propoxy-carbonyl-, dimethylaminosulphonyl- ordiethylaminosulphonyl-substituted heterocyclylcarbonyl orheterocyclylsulphonyl selected from the group consisting offurylcarbonyl, furylsulphonyl, thienylcarbonyl, thienylsulphonyl,pyrazolylcarbonyl, pyrazolylsulphonyl, pyridinylcarbonyl,pyridinylsulphonyl, quinolinylcarbonyl, quinolinylsulphonyl,pyrimidinylcarbonyl, and pyrimidinylsulphonyl.
 4. Theacylaminophenyl-uracil of claim 1, wherein n represents the number 1, Arepresents methylene, ethane-1,1-diyl(ethylidene) orethane-1,2-diyl(dimethylene), Ar represents substituted phenyl, naphthylor benzyl, wherein the Ar substituent(s) is/are selected from the groupconsisting of nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl,n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl, methoxy, ethoxy,n- or i-propoxy, difluoromethoxy, trifluoromethoxy, methylthio,ethylthio, n- or i-propylthio, difluoromethylthio, trifluoromethylthio,methylsulphinyl, ethylsulphinyl, n- or i-propylsulphinyl,trifluoromethylsulphinyl, methylsulphonyl, ethyl-sulphonyl, n- ori-propylsulphonyl, trifluoromethylsulphonyl, methoxycarbonyl,ethoxycarbonyl, and n- or i-propoxycarbonyl, Q represents O (oxygen), R¹represents hydrogen, amino or methyl, R² represents trifluoromethyl, R³represents hydrogen, chlorine or methyl, R⁴ represents hydrogen,fluorine or chlorine, R⁵ represents cyano, carbamoyl, thiocarbamoyl,chlorine or bromine, R⁶ represents hydrogen, represents unsubstituted orfluorine- and/or chlorine-substituted methylsulphonyl, ethylsulphonyl,n- or i-propylsulphonyl, n-, i- s- or t-butylsulphonyl, or representsoptionally fluorine- and/or chlorine-substituted cyclopropylsulphonyl.5. The acylaminophenyl-uracil of claim 1, wherein n represents thenumber 0, A represents methylene, ethane-1,1-diyl(ethylidene) orethane-1,2-diyl(dimethylene), Ar represents substituted phenyl ornaphthyl, wherein the Ar substituent(s) is/are selected from the groupconsisting of nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl,n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl, methoxy, ethoxy,n- or i-propoxy, difluoromethoxy, trifluoromethoxy, methylthio,ethylthio, n- or i-propylthio, difluoromethylthio, trifluoromethylthio,methylsulphinyl, ethylsulphinyl, n- or i-propylsulphinyl,trifluoromethylsulphinyl, methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, trifluoromethylsulphonyl, methoxycarbonyl,ethoxycarbonyl, and n- or i-propoxycarbonyl, R¹ represents hydrogen,amino or methyl, R² represents trifluoromethyl, R³ represents hydrogen,chlorine or methyl, R⁴ represents hydrogen, fluorine or chlorine, R⁵represents cyano, carbamoyl, thiocarbamoyl, chlorine or bromine, and R⁶represents hydrogen, represents unsubstituted or fluorine- and/orchlorine-substituted methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, n-, i-, s- or t-butylsulphonyl, or representsoptionally fluorine- and/or chlorine-substituted cyclopropylsulphonyl.6. A process for preparing an acylaminophenyl-uracil of formula I

wherein n represents the number 1, A represents unsubstituted orhalogen-substituted alkanediyl(alkylene) having 1 to 6 carbon atoms orcycloalkanediyl having 3 to 6 carbon atoms, or A represents a singlebond or an unsubstituted or halogen-substituted alkanediyl(alkylene)having 1 to 6 carbon atoms or cycloalkanediyl having 3 to 6 carbon atomsattached to Ar via an alkanediyl grouping having 1 to 3 carbon atomswhere n represents 1; Ar represents substituted aryl or arylalkyl having6 or 10 carbon atoms in the aryl group and optionally 1 to 4 carbonatoms in the alkyl moiety, or represents unsubstituted or substitutedheterocyclyl or heterocyclylalkyl selected from the group consisting ofoxiranyl, oxiranylmethyl, oxetanyl, oxetanylmethyl, furyl, furylmethyl,tetrahydrofuryl, tetrahydrofurylmethyl, thienyl, thienylmethyl,tetrahydrothienyl, tetrahydrothienylmethyl, benzofuryl,benzofurylmethyl, dihydrobenzofuryl, dihydrobenzofurylmethyl,benzothienyl, benzothienylmethyl, pyrrolyl, pyrrolylmethyl, pyrazolyl,pyrazolylmethyl, pyranyl, pyranylmethyl, benzopyranyl,benzopyraiiylmethyl, dihydrobenzopyranyl, dihydrobenzopyranylmethyl,tetrahydrobenzopyranyl, tetrahydrobenzopyranylmethyl, pyridinyl,pyridinylmethyl, pyrimidinyl, and pyrimidinylmethyl, wherein thesubstituent(s) for Ar is/are selected from the group consisting ofnitro, cyano, carboxyl, carbamoyl, thiocarbamoyl, halogen, C₁-C₄-alkyl,C₁-C₄-halogenoalkyl, C₁-C₄-alkoxy, C₁-C₄-halogenoalkoxy,C₁-C₄-alkylthio, C₁-C₄-halogenoalkylthio, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl, C₁-C₄-alkylsulphonyl,C₁-C₄-halogenoalkylsulphonyl, C₁-C₄-alkylamino, di-(C₁-C₄-alkyl)amino,C₁-C₄-alkyl-carbonyl, C₁-C₄-alkoxy-carbonyl, C₁-C₄-alkylamino-carbonyl,di-(C₁-C₄-alkylamino-carbonyl, and di-(C₁-C₄-alkyl)-amino-sulphonyl, Qrepresents O (oxygen), S (sulphur), SO, SO₂, NH or N(C₁-C₄-alkyl), R¹represents hydrogen, amino or unsubstituted or cyano-, carboxyl-,halogen-, C₁-C₄-alkoxy- or —C₁-C₄-alkoxycarbonyl-substituted alkylhaving 1 to 6 carbon atoms, R² represents carboxyl, cyano, carbamoyl,thiocarbamoyl or represents unsubstituted or cyano-, halogen- orC₁-C₄-alkoxy-substituted alkyl or alkoxycarbonyl having 1 to 6 carbonatoms in the alkyl groups, R³ represents hydrogen, halogen orunsubstituted or halogen-substituted alkyl having 1 to 6 carbon atoms,R⁴ represents hydrogen, cyano, carbamoyl, thiocarbamoyl, or halogen, R⁵represents cyano, carbamoyl, thiocarbamoyl, halogen, or representsunsubstituted or halogen-substituted alkyl or alkoxy having 1 to 4carbon atoms, and R⁶ represents hydrogen, represents unsubstituted orcyano-, halogen- or C₁-C₄-alkoxy-substituted alkyl, alkylcarbonyl oralkoxycarbonyl having 1 to 6 carbon atoms in the alkyl groups,represents unsubstituted or halogen-substituted alkylsulphonyl having 1to 6 carbon atoms, represents unsubstituted or halogen-substitutedalkenyl, alkenylcarbonyl, alkenylsulphonyl or alkynyl having up to 6carbon atoms, represents unsubstituted or halogen-substitutedcycloalkylcarbonyl or cycloalkylsulphonyl having 3 to 6 carbon atoms inthe cycloalkyl groups, represents unsubstituted or nitro-, cyano-,halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-,C₁-C₄-halogenoalkoxy-, C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-,C₁-C₄-alkylsulphinyl-, C₁-C₄-halogenoalkylsulphinyl-,C₁-C₄-alkylsulphonyl-, C₁-C₄-halogenoalkylsulphonyl,C₁-C₄-alkyl-carbonyl-, C₁-C₄-alkoxy-carbonyl- ordi-(C₁-C₄-alkyl-aminoysulphonyl-substituted arylcarbonyl, arylsulphonyl,arylalkylcarbonyl or arylalkylsulphonyl having 6 or 10 carbon atoms inthe aryl groups and 1 to 4 carbon atoms in the alkyl moiety, orrepresents unsubstituted or nitro-, cyano-, halogen-, C₁-C₄-alkyl-,C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-, C₁-C₄-halogenoalkoxy-,C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl-, C₁-C₄-alkylsulphonyl-,C₁-C₄-halogenoalkylsulphonyl-, C₁-C₄-alkyl-carbonyl-,C₁-C₄-alkoxy-carbonyl- or di-(C₁-C₄-alkyl-amino)-sulphonyl-substitutedheterocyclylcarbonyl or heterocyclylsulphonyl selected from the groupconsisting of furylcarbonyl, furylsulphonyl, thienylcarbonyl,thienylsulphonyl, pyrazolylcarbonyl, pyrazolylsulphonyl,pyridinylcarbonyl, pyridinylsulphonyl, quinolinylcarbonyl,quinolinylsulphonyl, pyrimidinylcarbonyl, and pyrimidinylsulphonyl, or,wherein n represents the number 0, R¹, R², R³, R⁴, R⁵ n, A, Ar and Q areas defined above, and R⁶ represents unsubstituted or halogen-substitutedalkenylsulphonyl having up to 6 carbon atoms, represents unsubstitutedor halogen-substituted cycloalkylsulphonyl having 3 to 6 carbon atoms inthe cycloalkyl groups, represents unsubstituted or nitro-, cyano-,halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-,C₁-C₄-halogenoalkoxy-, C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-,C₁-C₄-alkylsulphinyl-, C₁-C₄-halogenoalkylsulphinyl-,C₁-C₄-alkylsulphonyl-, C₁-C₄-halogenoalkylsulphonyl,C₁-C₄-alkyl-carbonyl-, C₁-C₄-alkoxycarbonyl- ordi-(C₁-C₄-alkyl-amino)-sulphonyl-substituted arylsulphonyl, orarylalkylsulphonyl having 6 or 10 carbon atoms in the aryl groups and 1to 4 carbon atoms in the alkyl moiety, or represents unsubstituted ornitro-, cyano-, halogen-, C₁-C₄-alkyl-, C₁-C₄-halogenoalkyl-,C₁-C₄-alkoxy-, C₁-C₄-halogenoalkoxy-, C₁-C₄-alkylthio-,C₁-C₄-halogenoalkylthio-, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl-, C₁-C₄-alkylsulphonyl-,C₁-C₄-halogenoalkylsulphonyl-, C₁-C₄-alkyl-carbonyl-,C₁-C₄-alkoxy-carbonyl- or di-(C₁-C₄-alkyl-amino)-sulphonyl-substitutedheterocyclylsulphonyl selected from the group consisting offurylcarbonyl, furylsulphonyl, thienylcarbonyl, thienylsulphonyl,pyrazolylcarbonyl, pyrazolylsulphonyl, pyridinylcarbonyl,pyridinylsulphonyl, quinolinylcarbonyl, quinolinylsulphonyl,pyrimidinylcarbonyl, and pyrimidinylsulphonyl; said process comprisingreacting an aminophenyl-uracil of the formula (I)

wherein R¹, R², R³, R⁴, R⁵ and R⁶ are as defined above with a compoundof the formula (III)

wherein n, A, Ar and Q are as defined above, and X represents halogen,and collecting the reaction product.
 7. A method for controlling thegrowth of at least one plant comprising applying to said plant and/orits locus an effective amount of one or more acylaminophenyl-uracil(s)of claim
 1. 8. A herbicidal composition, comprising one or moreacylaminophenyluracil(s) of claim 1 and one or more extenders.
 9. Theprocess of claim 6, wherein Ar represents substituted aryl or arylalkylhaving 6 or 10 carbon atoms in the aryl group and optionally 1 to 4carbon atoms in the alkyl moiety, wherein the Ar substituent(s) is/areselected from the group consisting of: nitro, cyano, carboxyl,carbamoyl, thiocarbamoyl, halogen, C₁-C₄-alkyl, C₁-C₄ halogenoalkyl,C₁-C₄-alkoxy, C₁-C₄-halogenoalkoxy, C₁-C₄-alkylthio,C₁-C₄-halogenoalkylthio, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl, C₁-C₄-alkylsulphonyl,C₁-C₄-halogenoalkylsulphonyl, C₁-C₄-alkylamino, di-(C₁-C₄-alkyl)-amino,C₁-C₄-alkyl-carbonyl, C₁-C₄-alkoxy-carbonyl, C₁-C₄-alkylamino-carbonyl,di-(C₁-C₄-alkyl)-amino-carbonyl, and di-(C₁-C₄-alkyl)-amino-sulphonyl.10. The process of claim 6, wherein A represents unsubstituted orfluorine- and/or chlorine-substituted methylene,ethane-1,1-diyl(ethylidene), ethane-1,2-diyl(dimethylene),propane-1,1-diyl(propylidene), propane-1,2-diyl orpropane-1,3-diyl(trimethylene), cyclopropane-1,1-diyl,cyclopropane-1,2-diyl, cyclobutane-1,1-diyl, cyclopentane-1,1-diyl orcyclohexane-1,1-diyl, with the proviso that where n represents 1 Arepresents a single bond, or an unsubstituted or fluorine- and/orchlorine-substituted methylene, ethane-1,1-diyl(ethylidene),ethane-1,2-diyl(dimethylene), propane-1,1-diyl(propylidene),propane-1,2-diyl or propane-1,3-diyl(trimethylene),cyclopropane-1,1-diyl, cyclopropane-1,2-diyl, cyclobutane-1,1-diyl,cyclopentane-1,1-diyl or cyclohexane-1,1-diyl, attached to Ar via a1,2-ethanediyl(dimethylene) grouping; Ar represents substituted phenyl,naphthyl, benzyl, 1-phenyl-ethyl, 2-phenyl-ethyl, 1-phenyl-propyl,2-phenyl-propyl or 3-phenyl-propyl, or represents optionally substitutedheterocyclyl or heterocyclylalkyl selected from the group consisting ofoxiranyl, oxiranylmethyl, oxetanyl, oxetanylmethyl, furyl, furylmethyl,tetrahydrofuryl, tetrahydrofurylmethyl, thienyl, thienylmethyl,tetrahydrothienyl, tetrahydrothienylmethyl, benzofuryl,benzofurylmethyl, dihydrobenzofuryl, dihydrobenzofurylmethyl,benzothienyl, benzothienylmethyl, pyrrolyl, pyrrolylmethyl, pyrazolyl,pyrazolylmethyl, pyranyl, pyranylmethyl, benzopyranyl,benzopyranylmethyl, dihydrobenzopyranyl, dihydrobenzopyranylmethyl,tetrahydrobenzopyranyl, tetrahydrobenzopyranylmethyl, pyridinyl,pyridinylmethyl, pyrimidinyl, and pyrimidinylmethyl, wherein the Arsubstituent(s) is/are selected from the group consisting of nitro,cyano, carboxyl, carbamoyl, thiocarbamoyl, fluorine, chlorine, bromine,methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl,methoxy, ethoxy, n- or i-propoxy, n-, i-, s- or t-butoxy,difluoromethoxy, trifluoromethoxy, methylthio, ethylthio, n- ori-propylthio, n-, i-, s- or t-butylthio, difluoromethylthio,trifluoromethylthio, methylsulphinyl, ethylsulphonyl, n- ori-propylsulphinyl, trifluoromethylsulphinyl, methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, trifluoromethylsulphonyl,methylamino, ethylamino, n- or i-propylamino, n-, i-, s- ort-butylamino, dimethylamino, diethyl-amino, acetyl, propionyl, n- ori-butyroyl, methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl,methylaminocarbonyl, ethylaminocarbonyl, n- or i-propylaminocarbonyl,dimethylaminocarbonyl, diethylaminocarbonyl, dimethylaminosulphonyl, anddiethylaminosulphonyl.
 11. The process of claim 6, wherein n representsthe number 1, A represents methylene, ethane-1,1-diyl(ethylidene) orethane-1,2-diyl(dimethylene), Ar represents substituted phenyl, naphthylor benzyl, wherein the Ar substituent(s) is/are selected from the groupconsisting of nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl,n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl, methoxy, ethoxy,n- or i-propoxy, difluoromethoxy, trifluoromethoxy, methylthio,ethylthio, n- or i-propylthio, difluoromethylthio, trifluoromethylthio,methylsulphinyl, ethylsulphinyl, n- or i-propylsulphinyl,trifluoromethylsulphinyl, methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, trifluoromethylsulphonyl, methoxycarbonyl,ethoxycarbonyl, and n- or i-propoxycarbonyl, Q represents O (oxygen).12. The process of claim 6, wherein n represents the number 0, Arepresents methylene, ethane-1,1-diyl(ethylidene) orethane-1,2-diyl(dimethylene), Ar represents substituted phenyl ornaphthyl, wherein the Ar substituent(s) is/are selected from the groupconsisting of nitro, cyano, fluorine, chlorine, bromine, methyl, ethyl,n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl, methoxy, ethoxy,n- or i-propoxy, difluoromethoxy, trifluoromethoxy, methylthio,ethylthio, n- or i-propylthio, difluoromethylthio, trifluoromethylthio,methylsulphinyl, ethylsulphinyl, n- or i-propylsulphinyl,trifluoromethylsulphinyl, methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, trifluoromethylsulphonyl, methoxycarbonyl,ethoxycarbonyl, and n- or i-propoxycarbonyl.
 13. The method of claim 7,wherein the acylaminophenyluracil is applied at a rate of between 1 and10 kg per hectare of soil surface.
 14. The acylaminophenyl-uracil ofclaim 1 wherein R⁶ represents unsubstituted or halogen-substitutedalkylsulphonyl having 1 to 6 carbon atoms, represents unsubstituted orhalogen-substituted alkenylsulphonyl having 1 to 6 carbon atoms,represents unsubstituted or halogen-substituted cycloalkylsulphonylhaving 3 to 6 carbon atoms in the cycloalkyl groups, representsunsubstituted or nitro-, cyano-, halogen-, C₁-C₄-alkyl-,C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-, C₁-C₄-halogenoalkoxy-,C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-, C₁-C₄-alkylsulphinyl-,C₁-C₄-halogenoalkylsulphinyl-, C₁-C₄-alkylsulphonyl-,C₁-C₄-halogenoalkylsulphonyl, C₁-C₄-alkyl-carbonyl-,C₁-C₄-alkoxy-carbonyl- or di-(C₁-C₄-alkyl-amino)-sulphonyl-substitutedarylsulphonyl, or arylalkylsulphonyl having 6 or 10 carbon atoms in thearyl groups and 1 to 4 carbon atoms in the alkyl moiety, or representsunsubstituted or nitro-, cyano-, halogen-, C₁-C₄-alkyl-,C₁-C₄-halogenoalkyl-, C₁-C₄-alkoxy-, C₁-C₄-halogenoalkoxy-,C₁-C₄-alkylthio-, C₁-C₄-halogenoalkylthio-, C₁-C₄-alkylsulphinyl,C₁-C₄-halogenoalkylsulphinyl-, C₁-C₄-alkylsulphonyl-,C₁-C₄-halogenoalkylsulphonyl-, C₁-C₄-alkyl-carbonyl-,C₁-C₄-alkoxy-carbonyl- or di-((C₁-C₄-alkyl-amino)-sulphonyl-substitutedheterocyclylsulphonyl selected from the group consisting offurylsulphonyl, thienylsulphonyl, pyrazolylsulphonyl,pyridinylsulphonyl, quinolinylsulphonyl, and pyrimidinylsulphonyl. 15.An acylaminophenyl-uracil of the formula (I),

wherein n represents the numbers 0 or 1, A represents unsubstituted orhalogen-substituted alkanediyl(alkylene) having 1 to 6 carbon atoms orcycloalkanediyl having 3 to 6 carbon atoms, or A represents a singlebond or an unsubstituted or halogen-substituted alkanediyl(alkylene)having 1 to 6 carbon atoms or cycloalkanediyl having 3 to 6 carbon atomsattached to Ar via an alkanediyl grouping having 1 to 3 carbon atomswhere n represents 1; Ar represents substituted phenyl, naphthyl,benzyl, 1-phenyl-ethyl, 2-phenyl-ethyl, 1-phenyl-propyl, 2-phenyl-propylor 3-phenyl-propyl, or represents optionally substituted heterocyclyl orheterocyclylalkyl selected from the group consisting of oxiranyl,oxiranylmethyl, oxetanyl, oxetanylmethyl, furyl, furylmethyl,tetrahydrofuryl, tetrahydrofurylmethyl, thienyl, thienylmethyl,tetrahydrothienyl, tetrahydrothienylmethyl, benzofuryl,benzofurylmethyl, dihydrobenzofuryl, dihydrobenzofurylmethyl,benzothienyl, benzothienylmethyl, pyrrolyl, pyrrolylmethyl, pyrazolyl,pyrazolylmethyl, pyranyl, pyranylmethyl, benzopyranyl,benzopyranylmethyl, dihydrobenzopyranyl, dihydrobenzopyranylmethyl,tetrahydrobenzopyranyl, tetrahydrobenzopyranylmethyl, pyridinyl,pyridinylmethyl, pyrimidinyl, and pyrimidinylmethyl, wherein the Arsubstituent(s) is/are selected from the group consisting of nitro,cyano, carboxyl, carbamoyl, thiocarbamoyl, fluorine, chlorine, bromine,methyl, ethyl, n- or i-propyl, n-, i-, s- or t-butyl, trifluoromethyl,methoxy, ethoxy, n- or i-propoxy, n-, i-, s- or t-butoxy,difluoromethoxy, trifluoromethoxy, methylthio, ethylthio, n- ori-propylthio, n-, i-, s- or t-butylthio, difluoromethylthio,trifluoromethylthio, methylsulphinyl, ethylsulphinyl, n- ori-propylsulphinyl, trifluoromethylsulphinyl, methylsulphonyl,ethylsulphonyl, n- or i-propylsulphonyl, trifluoromethylsulphonyl,methylamino, ethylamino, n- or i-propylamino, n-, i-, s- ort-butylamino, dimethylamino, diethyl-amino, acetyl, propionyl, n- ori-butyroyl, methoxycarbonyl, ethoxycarbonyl, n- or i-propoxycarbonyl,methylaminocarbonyl, ethylaminocarbonyl, n- or i-propylaminocarbonyl,dimethylaminocarbonyl, diethylaminocarbonyl, dimethylaminosulphonyl, anddiethylaminosulphonyl, Q represents O (oxygen), S (sulphur), SO, SO₂, NHor N(C₁-C₄-alkyl), R¹ represents hydrogen, amino or unsubstituted orcyano-, carboxyl-, halogen-, C₁-C₄-alkoxy- or—C₁-C₄-alkoxycarbonyl-substituted alkyl having 1 to 6 carbon atoms, R²represents carboxyl, cyano, carbamoyl, thiocarbamoyl or representsunsubstituted or cyano-, halogen- or C₁-C₄-alkoxy-substituted alkyl oralkoxycarbonyl having 1 to 6 carbon atoms in the alkyl groups, R³represents hydrogen, halogen or unsubstituted or halogen-substitutedalkyl having 1 to 6 carbon atoms, R⁴ represents hydrogen, cyano,carbamoyl, thiocarbamoyl, or halogen, R⁵ represents cyano, carbamoyl,thiocarbamoyl, halogen, or represents unsubstituted orhalogen-substituted alkyl or alkoxy having 1 to 4 carbon atoms, and R⁶represents hydrogen, represents unsubstituted or cyano-, fluorine-,chlorine-, methoxy- or ethoxy-substituted methyl, ethyl, n- or i-propyl,n-, i-, s- or t-butyl, acetyl, propionyl, n- or i-butyroyl, n-, i- orsec-valeroyl, pivaloyl, methoxycarbonyl, ethoxycarbonyl, n- ori-propoxy-carbonyl, represents optionally fluorine- and/orchlorine-substituted methylsulphonyl, ethylsulphonyl, n- ori-propylsulphonyl, n-, i-, s- or t-butylsulphonyl, represents optionallyfluorine-, chlorine- and/or bromine-substituted ethenyl, propenyl,butenyl, ethenylcarbonyl, propenylcarbonyl, butenylcarbonyl, ethynyl,propynyl or butynyl, represents optionally fluorine-, chlorine- and/orbromine-substituted cyclopropylcarbonyl, cyclopropylmethylcarbonyl,cyclobutylcarbonyl, cyclobutylmethylcarbonyl, cyclopentylcarbonyl,cyclopentylmethylcarbonyl, cyclohexylcarbonyl, cyclohexylmethylcarbonyl,cyclopropylsulphonyl, cyclopropylmethylsulphonyl, cyclobutylsulphonyl,cyclobutylmethylsulphonyl, cyclopentylsulphonyl,cyclopentylmethylsulphonyl, cyclohexylsulphonyl orcyclohexylmethylsulphonyl, represents optionally nitro-, cyano-,fluorine-, chlorine-, bromine-, methyl-, ethyl-, n- or i-propyl-, n-,i-, s- or t-butyl-, trifluoromethyl-, methoxy-, ethoxy-, n- ori-propoxy-, n-, i-, s- or t-butoxy-, difluoromethoxy-,trifluoromethoxy-, methylthio-, ethylthio-, n- or i-propylthio-, n-, i-,s- or t-butylthio-, difluoromethylthio-, trifluoromethylthio-,methylsulphinyl-, ethylsulphinyl-, n- or i-propylsulphinyl-,trifluoromethylsulphinyl-, methylsulphonyl-, ethylsulphonyl-, n- ori-propylsulphonyl-, trifluoromethylsulphonyl-, acetyl-, propionyl-, n-or i-butyroyl-, methoxycarbonyl-, ethoxycarbonyl-, n- ori-propoxycarbonyl-, dimethylaminosulphonyl- ordiethylamino-sulphonyl-substituted benzoyl, phenylsulphonyl,phenylacetyl, phenylpropionyl, benzylsulphonyl or phenylethylsulphonyl,or represents optionally nitro-, cyano-, fluorine-, chlorine-, bromine-,methyl-, ethyl-, n- or i-propyl-, n-, i-, s- or t-butyl-,trifluoromethyl-, methoxy-, ethoxy-, n- or i-propoxy-, n-, i-, s- ort-butoxy-, difluoromethoxy-, trifluoromethoxy-, methylthio-, ethylthio-,n- or i-propylthio-, n-, i-, s- or t-butylthio-, difluoromethylthio-,trifluoromethylthio-, methylsulphinyl-, ethylsulphinyl-, n- ori-propylsulphinyl-, trifluoromethylsulphinyl-, methylsulphonyl-,ethylsulphonyl-, n- or i-propylsulphonyl-, trifluoromethylsulphonyl-,acetyl-, propionyl-, n- or i-butyroyl-, methoxycarbonyl-,ethoxycarbonyl-, n- or i-propoxy-carbonyl-, dimethylaminosulphonyl- ordiethyl-aminosulphonyl-substituted heterocyclylcarbonyl orheterocyclylsulphonyl selected from the group consisting offurylcarbonyl, furylsulphonyl, thienylcarbonyl, thienylsulphonyl,pyrazolylcarbonyl, pyrazolylsulphonyl, pyridinylcarbonyl,pyddinylsulphonyl, quinolinylcarbonyl, quinolinylsulphonyl,pyrimidinylcarbonyl, and pyrimidinylsulphonyl.
 16. Anacylaminophenyl-uracil of the formula


17. An acylaminophenyl-uracil of the formula


18. An acylaminophenyl-uracil of the formula


19. An acylaminophenyl-uracil of the formula